Oura Ring 4 – Smart Ring – Silver – Size 8 – Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Oura App, Android & iOS Compatible
The Oura Ring 4 in Silver, Size 8 is a titanium smart ring designed for continuous health tracking through the Oura App. It records sleep, activity, readiness, stress, heart health, metabolic health, and women’s health metrics, with Smart Sensing intended to adapt measurements to the wearer.
Overview
This metallic silver Oura Ring 4 is a screen-free, vibration-free wearable for adults that connects to compatible Android and iOS smartphones over Bluetooth. It uses an all-titanium construction and is rated water resistant, with an IP68 rating and a listed water-resistance depth of 100 meters.
The ring measures 0.98 x 0.98 x 0.28 inches and weighs 5.2 g. The included items are the Oura Ring 4, charger, USB cable, information booklet, and quick-start guide.
Key Features
Smart Sensing supports continuous tracking across more than 50 health metrics. Listed measurements and areas include sleep duration, body temperature, menstrual cycle, stress, activity, readiness, heart health, metabolic health, and women’s health.
Battery life is listed as up to 8 days, while the product details list an average battery life of 5 days and an 80-minute charge time. GPS functionality is provided through a connected smartphone rather than built into the ring.
The Oura App supports multi-ring use, allowing owners of multiple Oura Ring 4 styles to switch between finishes in the app. The platform also integrates with more than 40 apps, including Apple Health, Google Health Connect, Natural Cycles, Flo, and Strava.
Real-World Performance
Customer feedback is positive overall on comfort and sleep tracking. Many reviewers describe the ring as comfortable when properly sized and find its sleep insights useful.
Reports are more mixed for battery behavior, overall functionality, tracking accuracy, and Bluetooth connectivity. Some customers say the ring charges quickly and works well, while others report short battery life, inconsistent tracking, pairing difficulties, or syncing problems.
Durability is another mixed area in customer feedback. Some users report satisfactory long-term use, while others mention scratching or failures within a year. Individual experience may therefore vary.
Ease of Use and Maintenance
There is no display on the ring, so reviewing data and managing the device is centered on the Oura App. Bluetooth connectivity is used for app integration, and smartphone-based GPS supports location-related functions.
Sizing deserves attention: Oura states that Ring 4 sizing differs from standard jewelry sizing and recommends using the Oura Ring 4 Sizing Kit before selecting a size. The listed unit is Size 8.
Routine charging is supported by the included charger and USB cable. Keeping the ring paired with a compatible phone and the app updated may be important given the connectivity concerns mentioned by some customers.
Pros and Trade-Offs
Pros include a lightweight titanium design, screen-free operation, water resistance, broad health-tracking coverage, smartphone compatibility, and integration with a large selection of third-party apps. The ability to switch among multiple Oura Ring 4 styles in the app can also suit users who own more than one finish.
Trade-offs include the need to use the app for all data viewing, reliance on smartphone-based GPS, and the importance of obtaining the correct ring size. Customer reports also point to possible variation in battery longevity, connection stability, tracking consistency, and surface durability.
Who This Product Is For
The Oura Ring 4 is suited to adults who want a discreet, screen-free wearable for around-the-clock sleep, activity, recovery, stress, and women’s health tracking. It may particularly appeal to people who prefer a ring form factor and want their data available through Android or iOS apps.
It is less suited to shoppers who want an on-device display or built-in GPS. Those prioritizing highly consistent Bluetooth behavior or long-term finish durability should consider the mixed customer feedback in those areas and confirm sizing before purchase.
